A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To meet general conviction that there must be perceptible erythema as evidence of beneficial effect from ultra-violet in hygienic industrial illumination, Cooper Hewitt lamp will be constructed of glass having increased ultra-violet transmission; value of new lamp is predicted graphically from its relative energy distribution, and erythematic effect curves. (See also - discussion p 601-610)
To meet general conviction that there must be perceptible erythema as evidence of beneficial effect from ultra-violet in hygienic industrial illumination, Cooper Hewitt lamp will be constructed of glass having increased ultra-violet transmission; value of new lamp is predicted graphically from its relative energy distribution, and erythematic effect curves. (See also - discussion p 601-610)
Mercury arc in hygienic illumination
Illum. Eng. Soc. -- Trans
Buttolph, L.J. (author)
1931
14 pages
14 Figs.
Article (Journal)
English
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